Mars's Gullies Probably Aren't Being Formed by Flowing Water

One Day, Seeing a Helicopter Fly on Mars May Be Commonplace. That Day Is Not TodayNASA Is About to Launch a Probe That Will Smash Into an Asteroid, Nudging Its Orbit

Alien Pathogens Could 'Hitchhike' to Earth – And We're Totally Unprepared, Experts WarnAstronomers May Have Detected a Rare 'Missing Link' Black Hole in Our Closest NeighborScientists Warn About 'False Fossils' Present on Mars

An Epic Lunar Eclipse Is Coming Tomorrow – The Longest of Its Kind in 580 YearsNew Electric Propulsion Engine For Spacecraft Test-Fired in Orbit For First Time

A Space Expert Explains Why Russia's Exploded Satellite Is Such A Huge Problem

Alien Worlds Hold Minerals Like Nothing in Our Solar System, Scientists SayHere Are Some Easy Tips So You Can Make All Those Zoom Calls Less Exhausting

Not All Twins Are Identical, And We Might Finally Understand The Evolution Behind ItAncient Bones Found in Bulgarian Cave Are Oldest Evidence of Modern Humans in Europe

FDA Now Says Our Dogs And Cats Should Practice Social Distancing, TooStone Tools Show How Humans Survived a Supervolcano Eruption 74,000 Years Ago